Soil Horizons
This soil horizon is characterized by its high OM content.
What is the O Horizon?
This soil property describes the proportions of sand, silt, and clay particles.
What is soil texture?
This type of tillage uses heavy machinery and results in soil compaction over time.
What is conventional tillage?
Wetlands typically have this type of soil.
What are histosols?
These soil colors indicate good oxidation, or good airflow.
What are reddish browns?
This soil horizon is the "topsoil" layer.
What is the A Horizon?
This soil particle is the largest in size, but has the least amount of surface area.
What is sand?
These are crops grown during the off season, primarily to improve soil health and slow erosion.
What are cover crops?
These types of plants are usually found in wetlands.
What are hydrophytes or hydrophytic plants?
You might find an acidic soil in this type of environment.
What is tropical
rainforest
humid
?
These 2 soil horizons are deeper, subsoil layers that are hardly weathered.
What is the B and C Horizon?
This soil property refers to the arrangement of sand, silt, and clay particles into aggregates.
What is soil structure?
3 sisters is one example of this type of planting method.
What is companion planting?
These are 2 benefits of wetlands.
What is
Species habitat
Water filtration
Flood reduction
Shoreline protection
Recreational Activities
Natural Products
Scenic Beauty
?
Soil pH can be raised by this slow process.
What is liming?
This horizon is sometimes called the "zone of leaching" and is not present in all soils.
What is a clay loam?
This type of tillage leaves at least 30% of crop residues on the soil surface after harvest.
What is conservation tillage?
These types of wetlands may be created to treat wastewater in urban areas.
What are artificial wetlands?
This is a measurement of how much nutrients are present in a solution.
What is electrical conductivity (EC)?
True or False: All soils contain all horizons.
What is false?
This soil is 50% clay and 45% silt.
What is silty clay?
This is how new fields were traditionally prepared by Mvskoke men.
What is trees were girdled and their slow death and decomposition fertilized the soil?
These are 2 more benefits or wetlands.
What is
Wildlife habitat
Water filtration
Flood Reduction
Shoreline Protection
Recreation Activities
Natural Products
Scenic Beauty
?
This is how plant roots obtain nutrients from the soil.
What is cation exchange? (Plant roots exchange H+ ions for nutrients)